What: Radio show hosts Jad Abumrad and Robert Krulwich examine what it’s like to be trapped in the dark, including one tale of an astronaut locked outside his shuttle; Thao Nguyen provides the score.
Why: Comedian Demetri Martin and contorting dancers Pilobolus perform.
When: Fri., 8 p.m.
Where: Kimmel Center, Academy of Music, 240 S. Broad St. Tickets ($37-$50) at 215-893-1999 or tickets.kimmelcenter.org.
Summer BBQ Blowout
What: Shop the sale rack for lines like Proenza Schouler and Jenni Kayne at up to 60 percent off (reg. $180-$4,000).
Why: Beer, popcorn, and Stella McCartney go so well together.
When: Fri., 4-8 p.m.
Where: Adresse, 1706 Locust St. (215-985-3161).
PHS Pop-Up Garden
What: Pennsylvania Horticultural Society fills an empty Rittenhouse lot with veggies, herbs, and wildflowers.
Why: Gather around the sprawling table for demos.
When: Thru mid-Oct. Tues., Wed. & Fri., 11 a.m.-2 p.m.; Thurs., 11 a.m.-2 p.m. & 5-7 p.m.; second Sat. of each month, 9 a.m.-1 p.m.
Where: 1905 Walnut St.
Fishtown Walking Tour
What: Stop at vacant industrial warehouses and humble churches to learn what the neighborhood was like before gentrification hit.
Why: Tour guide Dane Wells wraps up the stroll with a cold brew at Kraftwork.
When: Sat., 2 p.m.
Where: Tour starts at Penn Treaty Park, at N. Delaware & E. Columbia Aves. Tickets ($10) at independencevisitorcenter.com.
Photo: Lars Topelmann / Courtesy of Radiolab Live